“ Parallax’s Basic Stamp is the mainstay for hobbyists wanting to add intelligence to everyday devices. A new system called Arduino provides the benefits of the Basic Stamp at a greatly reduced cost, increased speed, and is entirely open-source.
Getting to the “Hello World” of microcontroller projects, the blinking LED, on Arduino costs $32 compared to the $119 for a Basic Stamp. This is perhaps a little unfair because the Basic Stamp board contains a full bread-boarding space. A similar setup for Arduino would cost about $60, still a 2x savings (and can made cheaper if you want).“